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hexagon: Use generic idle loop

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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Paul McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Reviewed-by: Cc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Cc: Magnus Damm <magnus.damm@gmail.com>
Acked-by: Richard Kuo <rkuo@codeaurora.org>
Link: http://lkml.kernel.org/r/20130321215234.338692935@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2013-03-21 22:49:46 +01:00
parent 0d24260c9e
commit 4e0fcc5672
3 changed files with 5 additions and 21 deletions
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1
arch/hexagon/Kconfig
View File

@ -24,6 +24,7 @@ config HEXAGON
select NO_IOPORT select NO_IOPORT
select GENERIC_IOMAP select GENERIC_IOMAP
select GENERIC_SMP_IDLE_THREAD select GENERIC_SMP_IDLE_THREAD
select GENERIC_IDLE_LOOP
select STACKTRACE_SUPPORT select STACKTRACE_SUPPORT
select KTIME_SCALAR select KTIME_SCALAR
select GENERIC_CLOCKEVENTS select GENERIC_CLOCKEVENTS

23
arch/hexagon/kernel/process.c
View File

@ -51,28 +51,11 @@ void start_thread(struct pt_regs *regs, unsigned long pc, unsigned long sp)
* If hardware or VM offer wait termination even though interrupts * If hardware or VM offer wait termination even though interrupts
* are disabled. * are disabled.
*/ */
static void default_idle(void) void arch_cpu_idle(void)
{ {
__vmwait(); __vmwait();
} /* interrupts wake us up, but irqs are still disabled */
local_irq_enable();
void (*idle_sleep)(void) = default_idle;
void cpu_idle(void)
{
while (1) {
tick_nohz_idle_enter();
local_irq_disable();
while (!need_resched()) {
idle_sleep();
/* interrupts wake us up, but aren't serviced */
local_irq_enable(); /* service interrupt */
local_irq_disable();
}
local_irq_enable();
tick_nohz_idle_exit();
schedule();
}
} }
/* /*

2
arch/hexagon/kernel/smp.c
View File

@ -184,7 +184,7 @@ void __cpuinit start_secondary(void)
local_irq_enable(); local_irq_enable();
cpu_idle(); cpu_startup_entry(CPUHP_ONLINE);
} }